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Marcelaria benguelensis corticolous (bark-dwelling) and crustose lichen in the family Trypetheliaceae . It is found in continental southeast Asia.
Taxonomy [ edit ]
The lichen was first formally described in 1885 by Swiss botanist Johannes Müller Argoviensis as a species of Bathelium type specimen was collected in India.[3] Alexander Zahlbruckner transferred it to the genus Laurera [4] circumscribed genus Marcelaria [2]
The taxon Laurera subbenguelensis described in 1987 by Dalip Kumar Upreti and Ajay Singh from specimens found in Kerala ,[5] synonymous with Marcelaria benguelensis .[2]
Description [ edit ]
Marcelaria benguelensis has an olive-green, crustose thallus with a surface that often has an orange pruina . The ascomata resemble warts on the thallus surface; they are 0.6–1 mm in diameter, and cluster together in groups of 2 to 6. The ascospores , which number 8 per ascus , are muriform (divided into chambers) with 15 to 23 septa running transversely through the spore and 3 to 7 that are longitudinal; the spores measure 50–80 by 17–23 μm and have a gelatinous sheath that is 3–12 μm thick.[2]
Marcelaria benguelensis contains the secondary compounds parietin and teloschistin (both anthraquinone pigments) and lichexanthone . The latter substance causes the thallus to fluoresce a yellow colour when shone with a UV light .[2] extracts of the lichen have antimicrobial properties, which are attributed to the presence of lichexanthone.[6]
Distribution [ edit ]
The lichen has been recorded from Cambodia, India, Myanmar, the Philippines,[2] [6]
References [ edit ]
^ a b c d e f Aptroot, A.; Nelsen, M.P.; Parnmen, S. (2013). "Marcelaria , a new genus for the Laurera purpurina group in the Trypetheliaceae (Ascomycota: Dothideomycetes)" . Glalia . 5 2 ): 1–14.
^ Müller, J. (1885). "Lichenologische Beiträge XXI" . Flora (Regensburg) (in Latin). 68 12 ): 247–261.
^ Zahlbruckner, A. (1922). Catalogus Lichenum Universalis
^ Upreti, D.K.; Singh, A. (1987). "Lichen genus Laurera from the Indian subcontinent". Bulletin du Jardin Botanique National de Belgique . 57 doi :10.2307/3668110 . JSTOR 3668110 .
^ a b Manojlovic, Nedeljko T.; Vasiljevic, Perica J.; Marković, Zoran S. (2010). "Antimicrobial activity of extracts and various fractions of chloroform extract from the lichen Laurera benguelensis " . Journal of Biological Research-Thessaloniki . 13
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Marcelaria_benguelensis&oldid=1110317924 " C a t e g o r i e s : ● T r y p e t h e l i a c e a e ● L i c h e n s p e c i e s ● L i c h e n s d e s c r i b e d i n 1 8 8 5 ● L i c h e n s o f A s i a ● T a x a n a m e d b y J o h a n n e s M ü l l e r A r g o v i e n s i s H i d d e n c a t e g o r i e s : ● C S 1 L a t i n - l a n g u a g e s o u r c e s ( la ) ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a ● A r t i c l e s w i t h ' s p e c i e s ' m i c r o f o r m a t s
● T h i s p a g e w a s l a s t e d i t e d o n 1 4 S e p t e m b e r 2 0 2 2 , a t 2 0 : 0 2 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
